RFR: 8350210: CTW: Use stackless exceptions

Aleksey Shipilev shade at openjdk.org
Tue Feb 18 09:10:44 UTC 2025


Looking at reducing CTW costs in our infra, there are a few simple improvements we can take.

CTW runners compiling 3rd party JARs normally catch lots of stray exceptions when trying to load non-existing classes, e.g. for resolving the static final fields, or preloading the constant pool. Generating stack traces for these take considerable time, and stack traces for those exceptions are not essential to debug CTW runs. So, we can summarily disable them.

This has no effect on `applications/ctw/modules`. Compiling a large 3rd party JAR like `solr-core-7.4.0.jar`, for example, improves from ~15.3s to ~12.5s.

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Commit messages:
 - Fix

Changes: https://git.openjdk.org/jdk/pull/23671/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=23671&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8350210
  Stats: 2 lines in 1 file changed: 2 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/23671.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/23671/head:pull/23671

PR: https://git.openjdk.org/jdk/pull/23671


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